Finite Element Method Analysis And Design For Prestressed Shell Type Structure

Abhinandan R. Gupta, Dr. S.K.Deshmukh, Miss Snehal R.Metkar, "Finite Element Method Analysis And Design For Prestressed Shell Type Structure", IRT Proceeding on national conference on Innovative Approaches in Civil Engineering, 7-8 April, 2012, published by Indian research transaction, India

With the urge for sustainable, durable and economical construction various methods for designing, developing and onstructing structures right from Class I structures like important service and community structures - Power plants, Reservoirs, Health care centers, Airports to ordinary structures have been developed rapidly in the last few decades. Along with these construction techniques the reliability of present or proposed structure is determined with various analysis and designing methods for parameters under consideration. One such reliable and effective method is Finite element Method. FEM even if complex and hard for manual analysis but is one of the most efficient method for software programming.FEM method works effectively even for complex structure with efficient results or outcomes.

Such complex structure can be defined complex because of their geometrical shape, composition or development of stresses within them. These strange parameters make many of analysis and designing classical method less efficient as they are developed for conventional structures or cases. One of the example is Circular Presstressing structure like water tank, “Prestressed” word itself makes designing process unusual along with analyzing it for stress and bending moment pattern for same structure before and after designing.

Over here the analysis and designing is done using Finite Element Method for Pestressed Water Tank. For considered grid pattern and assumptions made the results for stress and Bending moment are checked with the analysis and designing method of Indian standard code of Practice: 1343-1980, 3370-III,IV,1965. The aim of the paper is to study the stress pattern for circular prestressed water tank, designing it based on FEM results and to check Finite Element Methods applicability for such unusual construction method. Outcomes obtained after designing and analysis by FEM marked its high efficiency for such structures too.

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